Recording device

Abstract

The invention relates to a recording device (10) comprising a scan head carrier (18) for moving the scan head (20) across a scan area (42) of a cavity, the scan area (42) extending around the scan head (20). The scan head guide (18) passes through the cavity towards the scan head (20). In particular, a control device (44) determines the shape of the cavity (40). A second extraoral scanning head (43) scans extraoral areas.

The invention claimed is: 
     
       1. A recording device arrangement comprising
 a first scan head which is mounted on a scan head carrier, the first scan head being designed for scanning an intraoral scan area which extends at least partially around the first scan head, and 
 a second scan head for scanning extraorally and spaced apart from the first scan head, 
 wherein the first scan head is an all-around scan head having a spherical detection space, and 
 wherein the second scan head is a directional scan head detecting less than one hemisphere. 
 
     
     
       2. The recording device arrangement according to  claim 1 ,
 wherein the intraoral scan area comprises an edentulous alveolar ridge, and 
 wherein scanning extraorally comprises scanning soft tissue extraorally surrounding a mouth. 
 
     
     
       3. The recording device arrangement according to  claim 1 ,
 wherein the intraoral scan area comprises an edentulous alveolar ridge, and 
 wherein scanning extraorally comprises scanning an extraoral area and an intraoral area. 
 
     
     
       4. The recording device arrangement according to  claim 1 ,
 wherein soft tissue extraorally surrounding a mouth comprises lip tissue and/or cheek tissue. 
 
     
     
       5. The recording device arrangement according to  claim 1 ,
 wherein the scan head carrier has at least two scan head accommodations, and 
 wherein one scan head accommodation is always equipped with the first scan head and the other scan head accommodation can optionally be equipped with the second scan head. 
 
     
     
       6. The recording device arrangement according to  claim 1 ,
 wherein the less than one hemisphere comprises a cone of approximately 120 degrees expansion. 
 
     
     
       7. The recording device arrangement according to  claim 1 ,
 wherein the second scan head comprises a scanning axis that is substantially aligned towards the first scan head with a deviation of less than 30 degrees. 
 
     
     
       8. The recording device arrangement according to  claim 1 ,
 wherein the first and second scan heads are each accommodated on a common scan head carrier in a spaced apart and precisely defined position in a scan head reception. 
 
     
     
       9. The recording device arrangement according to  claim 1 ,
 wherein the recording device comprises a control and evaluation device detecting and evaluating scan results. 
 
     
     
       10. The recording device arrangement according to  claim 9 ,
 wherein the control and the evaluation device of the recording device detects individual parts of the scanning area. 
 
     
     
       11. The recording device arrangement according to  claim 1 ,
 wherein a digital model of a patient's head is produced based on a plurality of scanning operations of the first and/or the second scan head regarding anatomical conditions and respective tissue affected, which anatomical conditions and resilience of the respective tissue affected form the scanning region. 
 
     
     
       12. The recording device arrangement according to  claim 1 ,
 wherein each scanning head provides for detection using UV light, visible light and/or infrared light and/or ultrasound and/or X-rays, separated by different spectra. 
 
     
     
       13. The recording device arrangement according to  claim 1 ,
 wherein a control and evaluation device are provided in the recording device by which a bipolar line including at least one reference marker can be detected by the second scan head. 
 
     
     
       14. The recording device arrangement according to  claim 1 ,
 wherein the recording device has a control and evaluation device by the use of which the anatomical conditions of lips and a surrounding region of a patient can be detected.